"legitimately angry" is a perfectly valid phrase in written English
You can use it when you want to express that someone is feeling genuine, justified anger. For example, "She was legitimately angry when she found out she was being paid less than her male colleagues."
"These legitimately angry voters don't need a leader to say things that are true, or feel true.
They say many ordinary people are legitimately angry with world leaders over the financial crisis, and should be entitled to express this anger.
And after decades, the disenfranchised are legitimately angry.
China is like a red rag agitated in front of legitimately angry workers who do not know how capitalism works.
These billionaires and their neocon brothers finance and help organize populist politicians and movements that attract people who are legitimately alienated and legitimately angry with a big government that mostly serves big pools of capital.
And here's the part you can legitimately get angry about.
The most respectful of the Jacobs stores emphasizing actual clothes was the one for children, which carried pieces chipper enough that most adults wouldn't look sensible in them, and fantastic enough that one might legitimately get angry at a child for outgrowing them.
Affleck legitimately depicts the angry crowds outside the American Embassy in Teheran in 1953 which I remember clearly in my years as a foreign correspondent.
Once you and your partner have been able to share all five levels of vulnerability and now have a conscious awareness of what each means to the other, you will no longer want to justify your words or actions even when you are legitimately and understandably angry.
From his uncool Korean parents with their "legitimately tragic childhoods" to the angry little kids next door ("a barrage of iceballs arc overhead like grenades"), Albert views growing up with all the comic sweetness and unsentimentality it deserves.
Republicans have accused angry attendees of being "paid protesters" rather than legitimately concerned citizens.
